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为了提高公交系统的服务质量,针对目前公交报站系统存在的各种弊端,设计了一种基于nRF905的公交车自动报站系统。首先给每一个站点设定一个二进制码,然后通过nRF905射频收发电路对其进行编码调制,并发送该编码数据,当汽车进入接收范围时车载设备收到数据,并对数据进行解调解码,最后根据解码后的数据确定车辆所到的站点,并向站台发送一个数据,同时启动语音电路报出相应的站名,完成公交车与站台间的双工通信,实现对车站自动识别、自动报站的功能。
In order to improve the service quality of public transportation system, aiming at the drawbacks of the current public transit reporting system, an nRF905-based automatic bus reporting system is designed. First of each site to set a binary code, and then through the nRF905 RF transceiver circuit to its encoding and modulation, and send the encoded data, when the car into the receiving range when the vehicle receives data equipment, and data demodulation and decoding, and finally According to the decoded data to determine the vehicle to the site, and send a data to the station, and start the voice circuit to report the corresponding station name, complete the bus and station duplex communication between stations to achieve automatic identification, automatic reporting stations Function